119 lines
3.9 KiB
C
119 lines
3.9 KiB
C
/*
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Copyright (c) 2013, The Linux Foundation. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided
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with the distribution.
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* Neither the name of The Linux Foundation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "string.h" /* memset */
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#include "stdlib.h" /* free, malloc */
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#include "stdint.h" /* uint32_t */
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/**
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* struct ipa_nat_ipv4_rule - To hold ipv4 nat rule
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* @target_ip: destination ip address
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* @private_ip: private ip address
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* @target_port: destination port
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* @private_port: private port
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* @protocol: protocol of rule (tcp/udp)
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*/
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typedef struct
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{
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uint32_t target_ip;
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uint32_t private_ip;
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uint16_t target_port;
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uint16_t private_port;
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uint16_t public_port;
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uint8_t protocol;
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}ipa_nat_ipv4_rule;
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/**
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* ipa_nat_add_ipv4_tbl() - create ipv4 nat table
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* @public_ip_addr: [in] public ipv4 address
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* @number_of_entries: [in] number of nat entries
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* @table_handle: [out] Handle of new ipv4 nat table
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*
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* To create new ipv4 nat table
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*
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* Returns: 0 On Success, negative on failure
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*/
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int ipa_nat_add_ipv4_tbl(uint32_t public_ip_addr,
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uint16_t number_of_entries,
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uint32_t *table_handle);
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/**
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* ipa_nat_del_ipv4_tbl() - delete ipv4 table
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* @table_handle: [in] Handle of ipv4 nat table
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*
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* To delete given ipv4 nat table
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*
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* Returns: 0 On Success, negative on failure
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*/
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int ipa_nat_del_ipv4_tbl(uint32_t table_handle);
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/**
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* ipa_nat_add_ipv4_rule() - to insert new ipv4 rule
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* @table_handle: [in] handle of ipv4 nat table
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* @rule: [in] Pointer to new rule
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* @rule_handle: [out] Return the handle to rule
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*
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* To insert new ipv4 nat rule into ipv4 nat table
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*
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* Returns: 0 On Success, negative on failure
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*/
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int ipa_nat_add_ipv4_rule(uint32_t table_handle,
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const ipa_nat_ipv4_rule *rule,
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uint32_t *rule_handle);
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/**
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* ipa_nat_del_ipv4_rule() - to delete ipv4 nat rule
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* @table_handle: [in] handle of ipv4 nat table
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* @rule_handle: [in] ipv4 nat rule handle
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*
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* To insert new ipv4 nat rule into ipv4 nat table
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*
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* Returns: 0 On Success, negative on failure
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*/
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int ipa_nat_del_ipv4_rule(uint32_t table_handle,
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uint32_t rule_handle);
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/**
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* ipa_nat_query_timestamp() - to query timestamp
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* @table_handle: [in] handle of ipv4 nat table
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* @rule_handle: [in] ipv4 nat rule handle
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* @time_stamp: [out] time stamp of rule
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*
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* To retrieve the timestamp that lastly the
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* nat rule was accessed
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*
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* Returns: 0 On Success, negative on failure
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*/
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int ipa_nat_query_timestamp(uint32_t table_handle,
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uint32_t rule_handle,
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uint32_t *time_stamp);
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